기본 순음에 대한 한국 정상 성인의 임계주파수대역 특성 = Critical Bandwidths of a Basic Tonal Frequency for Korean Normal Young Adults

다국어 초록 (Multilingual Abstract)

Purpose: The critical bandwidth represents response interactions with respect to a reference tone and neighboring spectral bands. The aim of this study was to analyze the critical bandwidths of a 1,000 Hz tone in Korean young male and female subjects at a conversational level (60 dB HL). Methods: Critical bandwidths were measured in twenty subjects with the notched band noise method under the two alternative forced choice condition. Results: The average critical bandwidth of 1,000 Hz was 175.23 Hz, which was slightly greater than the previous Western measures. There were no statistically significant differences in gender, nor were there any significant differences in lateralization of the ear (p > 0.05). Conclusion: Critical bandwidth measures can produce valuable response profiles for reference tones and adjacent frequency bands. This information will be beneficial in improving Korean speech communication under various acoustic conditions.

참고문헌 (Reference)

1 이성민, "한국어 초, 중, 종성 혼돈 단음절 최소대립쌍 (CVC)에 대한 정상 성인의 지각경계 연구" 한국음향학회 29 (29): 325-331, 2010

2 Suga, N, "Tuning shifts of the auditory system by corticocortical and corticofugal projections and conditioning" 36 (36): 969-988, 2012

3 Egan, J. P, "On the masking pattern of a simple auditory stimulus" 22 : 622-630, 1950

4 Dau, T, "Modeling auditory processing of amplitude modulation. I. Detection and masking with narrow-band carriers" 102 (102): 2892-2905, 1997

5 Weinberger, N. M, "Long-term retention of learning-induced receptive-field plasticity in the auditory cortex" 90 (90): 2394-2398, 1993

6 Jurado, C, "Frequency selectivity for frequencies below 100 Hz : Comparisons with mid-frequencies" 128 (128): 3585-3596, 2010

7 Glasberg, B. R, "Frequency selectivity as a function of level and frequency measured with uniformly exciting notched noise" 108 (108): 2318-2328, 2000

8 Schreiner, C. E, "Frequency resolution and spectral integration(critical band analysis)in single units of the cat primary auditory cortex" 181 (181): 635-650, 1997

9 Moore, B. C, "Derivation of auditory filter shapes from notched-noise data" 47 (47): 103-138, 1990

10 Fletcher, H, "Auditory patterns" 12 : 47-65, 1940

11 Patterson, R. D, "Auditory filter shapes derived with noise stimuli" 59 (59): 640-654, 1976

12 Moore, B. C. J, "An Introduction to the Psychology of Hearing" Emerald 68-80, 2012